The plants without any fertiliser could be the control, to see what the change in the independent variable (fertiliser) does to the growth of the plant (dependant variable).
Hope that helps.
C - bc as the water boils the cold water particles melt and become the hot water particles!
Answer:
1. Solid phase.
Explanation:
The molecules in a solid are held in a definite pattern which is not true of a liquid or gas.
